Specifications, Cmrr, Thd & n – Sound Performance Lab 9523 User Manual

Page 9: Signal to noise, Input stage, Output stage, Dimensions

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9

Specifications

Frequency range

15 Hz- 40 kHz +/- 0,1 dB

Overall frequency range

10 Hz-100 kHz +/- 0,5 dB

E.I.N.

126,6 dBm/dBu

CMRR

(common mode rejection)

(Measuring set-up: load ohms 150 W, 0dB, measured at XLR-output)

CMRR -20 dBu

CMRR -60 dBu

100 Hz:

-80 dBu-80 dBu

1 kHz:

-80 dBu-80 dBu

10 kHz:

-73 dBu-80 dBu

20 kHz:

-68 dBu-80 dBu

THD & N

(total harmonic distortion & noise)

(Measuring set-up: load ohms 150 W, measured at XLR-output)

Measurement A

Measurement B

Varying amplifications

60dB amplifications; increase of

up to 0dBu

generator output in 10dB steps

-60 dBu to 0 dBu = 0,064 %

-60 dBu = 0,064 %

-50 dBu to 0 dBu = 0,028 %

-50 dBu = 0,058 %

-40 dBu to 0 dBu = 0,017 %

-40 dBu = 0,018 %

-30 dBu to 0 dBu = 0,015 %

-30 dBu = 0,006 %

-20 dBu to 0 dBu = 0,062 %

(-35 dB activ)

-20 dBu = 0,002 %

-10 dBu to 0 dBu = 0,025 %

(-35 dB activ)

-10 dBu = clipping

0 dBu to 0 dBu = 0,017 %

(-35 dB activ)

Signal to noise

(Measuring set-up: load ohms 150 W, measured at XLR-output)

amplification CCIR-469-2

A unweighted

72 dB

-55,85 dBqp

-60,07 dB

60 dB

-60,66 dBqp

-69,75 dB

50 dB

-68,57 dBqp

-77,55 dB

40 dB

-73,11 dBqp

-81,75 dB

30 dB

-74,79 dBqp

-83,18 dB

with -35 dB Pad:
20 dB

-62,56 dBqp

-71,85 dB

10 dB

-69,83 dBqp

-78,68 dB

Input stage

Instrumentation amplifier,

electronically balanced

(differential), transformerless
Nominal input level

+6 dB

Input impedance

200 Ohm to 1,2 kOhm

headroom before clip

+25,72 dBu

Output stage

Output 1: XLR, Instrumentation amplifier, electronically
balanced (differential), transformerless,
Nominal output level +6 dB
Output 2: Jack, unbalanced
Nominal output level 0 dB
Output impedance (XLR/Jack) < 600 Ohm

Dimensions

Housing

Standard EIA 19"/1U,
482 x 44 x 237 mm

Weight

3,2 kg

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